21079425

素因数分解:

$3^1\times 5^2\times {\mathrm{53}}^1\times {\mathrm{5303}}^1$

素因数の和:5369

約数の個数: 24

約数和(自身を含む): 35515584

約数和(自身を除く): 14436159

約数列:

[1, 3, 5, 15, 25, 53, 75, 159, 265, 795, 1325, 3975, 5303, 15909, 26515, 79545, 132575, 281059, 397725, 843177, 1405295, 4215885, 7026475, 21079425]

約数ペア:

[(1, 21079425), (3, 7026475), (5, 4215885), (15, 1405295), (25, 843177), (53, 397725), (75, 281059), (159, 132575), (265, 79545), (795, 26515), (1325, 15909), (3975, 5303)]